The　power　conversion　efficiency　(PCE)　of　perovskite　solar　cells　(PSCs)　has　exceeded　those　of　conventional　thin-film　solar　cell　technologies,　and　the　speed　at　which　this　increase　has　been　achieved　is　unprecedented　in　the　history　of　photovoltaics.　Despite　the　significant　progress　achieved　by　PSCs　at　the　laboratory　level,　their　commercial　prospects　still　face　two　significant　challenges:　scaling　up　in　size　and　ensuring　long-term　stability.　Small-area　devices　(~1　cm2)　are　typically　fabricated　using　spin-coating.　However,　this　approach　may　not　be　suitable　for　preparing　the　large-area　(＞100　cm2)　substrates　required　for　commercialization.　Thus,　new　materials　and　methods　must　be　developed　to　facilitate　the　coating　of　large-area　PSCs.　This　review　will　discuss　the　development　of　scaling　up　organic-inorganic　hybrid　PSCs　and　the　challenges　of　increasing　the　device　area.　Furthermore,　it　will　provide　an　overview　of　the　methodologies　for　achieving　high-efficiency　perovskite　solar　modules.　©　2024　Wiley-VCH　GmbH.